public class E5 {
    public static void main(String args []) {
     int [] a ={10,20,30,40},b[]={{1,2},{4,5,6,7}}};
     b[0] = a;
     b[0][1] = b[1][3];
    System.out.println(b[0][3]);
    System.out.println(a[1]);
    }
}
